mchSamples-MAUI/ch06_Others/ex_Localization2/Resources/Converters/CultureInfo2StringConverter.cs

using System.Globalization;

namespace ex_Localization2.Resources.Converters;

public class CultureInfo2StringConverter : IValueConverter
{
    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
    {
        CultureInfo? cultureInfo = value as CultureInfo;

        if(cultureInfo == null) return "";

        return cultureInfo.Name;
    }

    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
    {
        if(value == null) return CultureInfo.CurrentUICulture;

        string? chosenCulture = value as string;
        
        if(string.IsNullOrWhiteSpace(chosenCulture)) return CultureInfo.CurrentUICulture;

        CultureInfo newCulture = new CultureInfo(chosenCulture);
        
        if(newCulture == null) return CultureInfo.CurrentUICulture;
        
        return newCulture;
    }
}